Products

LEADING FUTURE WEALTH

LAMINATED GLASS

  • Description
  • Parameter
  • Application



  Here's an explanation of how bent and laminated glass is made, courtesy of Standard Bent Glass in East Butler, PA.

First, large sheets of glass are scored into a range of end-use sizes. Then, these individual lites of glass are edged on a vertical line and sent to a large industrial washer. Next, they either get laminated or bent. 

At the laminating line, glass that has already been edged and washed gets washed again and fed into the lay-up room. Then, a glass "sandwich" is constructed with layers of glass and polyvinyl butryal, or PVB. This method can be modified to create colored, patterned or textured laminated glass. Once the sandwich is complete, it is trimmed and moved to a pre-heat oven, then a press, then another pre-heat oven and another press. 

Finally, the entire sandwich assembly goes into an industrial autoclave, where it is de-aired and sealed under the heat and pressure of the vessel. Afterwards, trimming of excess PVB takes place before final quality checks are performed. The glass is then prepared for shipment. 

Glass sheets have been curved or bent since ancient times. Today, an advanced computer-controlled roller hearth can process and temper even low-e coated glass in minutes. Before going into the roller hearth, the glass is finished, edged and washed. Once it moves to the hearth, it is pre-heated and rolled back and forth until the desired curve is imparted to the glass. Then, the glass is cooled and quenched to strengthen the curved glass. 

pl1493062-4mm_19mm_safety_tempered_glass_for_buildings.jpg


Even curved glass can be laminated and constructed into insulating glass units (IGUs). In this process, the glass parts are tested and inspected for fit and carefully and carefully cleaned before a flexible foam spacer is applied and pressure clamped. Then, a secondary seal is applied and the IGU is air-cured and ready to ship. 



■ T=Transmittance

■ R=Reflectivity

■ SHGC=Solar Heat Gain Coefficient

■ SC=Shading Coefficient


The glass performance data based on USA standard:NFRC 100-2010,European standard:CEN 



Glass Configuration

Visible Light

Solar Energy

U-Values

U-Values

SC

SHGC

STC

LT

LR

DET

ER

EA

Winter

Summer

EN673

(%)

 Outside

(%)

 inside

(%)

(%)

(%)

(%)

(W/m2 K)

(W/m2 K)

(W/m2 K)

G/G(3)

(SF)

(dB)

3mm float Clear glass

90

8

8

85

8

7

5.91 

5.33 

5.83 

1.00 

0.88 

29

4mm float Clear glass

90

8

8

84

8

8

5.88 

5.30 

5.80 

0.99 

0.87 

29

5mm float Clear glass

90

8

8

83

8

9

5.84 

5.27 

5.70 

0.98 

0.86 

30

6mm float Clear glass

89

8

8

80

7

13

5.81 

5.24 

5.70 

0.97 

0.84 

31

8mm float Clear glass

88

8

8

77

7

16

5.74 

5.19 

5.70 

0.94 

0.82 

33

10mm float Clear glass

87

8

8

74

7

19

5.67 

5.13 

5.60 

0.92 

0.80 

34

12mm float Clear glass

86

8

8

72

7

21

5.61 

5.07 

5.50 

0.90 

0.78 

36

15mm float Clear glass

85

8

8

69

7

24

5.51 

4.99 

5.40 

0.87 

0.76 

38

3mm Clear+0.38PVB+3mm Clear

89

8

8

73

8

19

5.75 

5.19 

5.67 

0.91 

0.79 

35

4mm Tempered Clear Glass+0.38PVB

+4mm Tempered Clear Glass

88

8

8

70

8

22

5.68 

5.13 

5.61 

0.88 

0.77 

35

5mm Tempered Clear Glass+0.76PVB

+5mm Tempered Clear Glass

86

8

8

67

7

26

5.56 

5.03 

5.49 

0.86 

0.75 

36

5mm Tempered Clear Glass+1.52PVB

+5mm Tempered Clear Glass

85

8

8

66

7

27

5.45 

4.94 

5.39 

0.86 

0.75 

38

5mm Tempered Clear Glass+1.9PVB

+5mm Tempered Clear Glass

84

8

8

64

7

29

5.39 

4.89 

5.34 

0.84 

0.73 

39

5mm Tempered Clear Glass+2.28PVB

+5mm Tempered Clear Glass

84

8

8

63

7

30

5.34 

4.85 

5.29 

0.83 

0.73 

40

6mm Tempered Clear Glass+0.76PV

B+6mm Tempered Clear Glass

85

8

8

65

7

28

5.50 

4.98 

5.43 

0.85 

0.74 

38

6mm Tempered Clear Glass+1.52PVB

+6mm Tempered Clear Glass

84

8

8

64

7

29

5.39 

4.89 

5.33 

0.84 

0.73 

39

6mm Tempered Clear Glass+1.9PVB

+8mm Tempered Clear Glass

83

8

8

63

7

30

5.33 

4.84 

5.28 

0.83 

0.73 

40

6mm Tempered Clear Glass+2.28PVB

+9mm Tempered Clear Glass

82

8

8

62

7

31

5.28 

4.80 

5.23 

0.83 

0.72 

41

Glass Configuration

Visible Light

Solar Energy

U-Values

U-Values

SC

SHGC

STC

LT

LR

DET

ER

EA

Winter

Summer

EN673

(%)

 Outside

(%)

 inside

(%)

(%)

(%)

(%)

(W/m2 K)

(W/m2 K)

(W/m2 K)

G/G(3)

(SF)

(dB)

4mm Tempered Clear Glass+9A

+4mm Tempered Clear Glass

82

15

15

69

14

17

2.87 

3.00 

3.00 

0.87 

0.76 

33

4mm Tempered Clear Glass+12A

+4mm Tempered Clear Glass

82

15

15

69

14

17

2.73 

2.87 

2.84 

0.87 

0.76 

33

5mm Tempered Clear Glass+12A

+5mm Tempered Clear Glass

80

14

14

66

12

22

2.71 

2.86 

2.83 

0.85 

0.74 

34

5mm Tempered Clear Glass+12Ar(Argon)+5mm Tempered Clear Glass

80

14

14

66

12

22

2.55 

2.72 

2.66 

0.85 

0.74 

34

5mm Tempered Clear Glass+12A

+5mm Low-E(EA)glass 

75

18

17

56

14

30

1.90 

1.92 

1.90 

0.80 

0.70 

34

5mm Tempered Clear Glass+12Ar(Argon)+5mm Low-E(EA)glass

75

18

17

56

14

30

1.62 

1.63 

1.59 

0.81 

0.70 

34

5mm Ocean blue glass +12ArArgon)

+5mm tempered clear glass 

54

10

14

41

8

51

2.55 

2.72 

2.66 

0.59 

0.52 

34

5mm  Ocean blue glass+12Ar(Argon)

+5mm Low-E(EA) glass 

50

11

16

34

9

57

1.62 

1.63 

1.59 

0.54 

0.47 

34

5mm blue star gray tinted

+12Ar(Argon)+5mm Clear

43

9

13

38

8

54

2.55 

2.72 

2.66 

0.57 

0.49 

34

5mm blue star gray tinted+12Ar(Argon)+5mm Low-E(EA)glass 

40

10

16

32

9

59

1.62 

1.63 

1.59 

0.51 

0.45 

34

5mm  Ocean blue reflective+12A

+5mm  Clear glass

19

23

49

21

16

63

2.36 

2.47 

2.44 

0.37 

0.32 

34

5mm Ocean blue reflective 

+12Ar(Argon)+5mm  Clear glass

19

23

49

21

16

63

2.15 

2.28 

2.22 

0.36 

0.31 

34

6mm Clear+9A+6mm Clear glass 

80

14

14

64

12

24

2.84

2.97

2.97 

0.84 

0.73 

34

6mm Clear+12A+6mm Clear glass 

80

14

14

64

12

24

2.70 

2.84 

2.81 

0.84 

0.73 

35

6mm Ocean blue glass+12Ar (Argon)

+6mm  Clear glass

49

8

13

36

7

57

2.53 

2.70 

2.65 

0.55 

0.48 

35

6mm Ocean blue glass+12Ar (Argon)+6mm Low-E(EA) glass 

50

11

15

33

9

58

1.62 

1.63 

1.59 

0.54 

0.47 

35

6mm blue star gray tinted+12Ar(Argon)+6mm Clear glass 

40

8

13

35

8

57

2.53 

2.70 

2.65 

0.53 

0.46 

35

6mm blue star gray tinted+12Ar(Argon)+6mm Low-E(EA)glass 

45

9

14

30

8

62

1.62 

1.62 

1.59 

0.49 

0.43 

35

6mm blue star gray Reflective+12A

+6mm Clear glass 

19

14

32

22

13

65

2.66 

2.80 

2.77 

0.40 

0.35 

35

6mm blue star gray Reflective

+12Ar(Argon)+6mm Clear glass 

19

14

32

22

13

65

2.48 

2.65 

2.59 

0.39 

0.34 

35

According to the standard, U value in winter with U (winter and summer) night at U (Xia Zhou) two parameters to measure, when not specifically indicate when the U value is U (winter).




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